My post on twitter was that I thought a Mental Misstep restriction was a lot more reasonable now. This is the type of card that stops combo and broken turn 1's without feeling like it oppresses more fair decks and it has more consistency than MBT and Fluster. The opponent can't turn 1 a Duress, take Force, and play around this like the previous two.
There is some concern that PO can use the spell to protect a PO on the opponent's turn while using this as additional Force of Wills for Narset, Karn, Rod, etc, but we'll see. I definitely like this printing.